Please help!! I suddenly got this error through my localhost with magento 1.9.24
I tried to install an extension from magento connect but keep showing me the below error:
community/Eadesigndev_Romcity: Unknown SSL protocol error in connection to connect20.magentocommerce.com:443
For temporary solution, you can download the source files directly off of Magento Connect using this tool:
http://freegento.com/ddl-magento-extension.php and then upload them manually!
Or Try Delete Var/Cache Files and use Set Permission of the magento root directory use:
sudo chmod -R 755 ~/Sites